Okay, so i have a HD mkv movie, and apparently i can't seem to move the movie into my Kingston 8GB usb thumbdrive. Other mkv files can be transferred into the thumbdrive flawlessly. I have tried transferring this movie into my external HDD too, but it doesn't seem to work as well. After several minutes of transferring this movie, a windows error box pops up as follow : Can't read from source file or disk ..... try again .... cancel??? What should I do? I have tried doing chkdsk on my thumbdrive, but there is no problem detected. Is there anyway i can detect if something is corrupted with the mkv movie. I tried playing it on the computer itself and it plays flawlessly... I'm using windows 7 btw. 64bit.